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Finding the Fourth Proportional to 202,486.68, 279,430.32 and 111,848.52

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Solution

The fourth proportional to 202,486.68, 279,430.32 and 111,848.52 is: 154,350.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,486.68 : 279,430.32 = 111,848.52 : x
  2. Step 2: Convert to fraction form
    202,486.68/279,430.32 = 111,848.52/x
  3. Step 3: Cross multiply
    202,486.68x = 279,430.32 × 111,848.52
  4. Step 4: Simplify right side
    202,486.68x = 31,253,867,735.13
  5. Step 5: Solve for x
    x = 31,253,867,735.13/202,486.68
  6. Step 6: Final answer
    x = 154,350.24

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.